Patents by Inventor Erhard Netz

Erhard Netz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Sealing arrangement for heat treatment apparatus
    Patent number: 5193998
    Abstract: A heat treatment apparatus for vacuum and high pressure operation includes a container within a vessel separated by thermal insulation. The vessel has a door for access to the container. Both the container and thermal insulation have separate doors mounted on a common frame pivotally mounted inwardly of the vessel door. The container door can be opened and closed from otuside the vessel when the thermal insulation and vessel doors are closed. Normally the container door is kept open in case of failure of the closing mechanism or in the event of a power failure.
    Type: Grant
    Filed: June 5, 1991
    Date of Patent: March 16, 1993
    Assignee: Arthur Pfeiffer Vakuumtechnik Wetzlar GmbH
    Inventors: Robert Hack, Jens Lindemann, Erhard Netz